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The frequency of a wave of light is 12x 10 14s-1. The wave number associated with this light is:
(1) 5x10-7m
(2) 4x 10 -8 cm-1
(3) 2x 10-7 m-1
(4)4x10 4cm-1
Ans: 4x10 4cm-1
Physical properties of Iodoform or tri-iodomethane (a) Iodoform is a yellow crystalline solid. (b) Iodoform has a pungent characteristic odour. (c) Iodoform is not solubl
Uses of pyrogallol (a) As a developer in photography. (b) As a hair dye. (c) In medicine of skin diseases like eczema. (d) For absorbing none reacted oxygen in gas ana
Q. Show the Properties of diborane? Diborane is a colourless gas (b. p., 183K). It is rapidly decomposed by water with the formation of H 3 B0 3 and H 2 : B 2 H, + 6H 2 0 -
General principles for naming organic compounds In the general system, all the isomeric alkanes (having similar molecular formula) have the the same parent name. The names of
The α -particle scattering experiment of Rutherford concluded that: (1) The nucleus is made up of protons and neutrons (2) The number of electrons is exactly equal to number
Advantages of gaseous fuel
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Mustard Although the primary use of mustard seeds is a condiments, important new food applications are regularly being found. Commercially available mustard products include m
There are five d-orbitals totally existed. These are designated as d xy , d yz , , d xz , and . The shapes of these orbitals are explained below: The three or
drawbacks of bohr thory
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